.index_title{ text-align: center; font-size: 1.5rem}
.title_under{ text-align: center; font-size: 2.0rem; font-family: "en_22"; padding: 1.5rem; clear: both;}
.about{font-family: "en_22"; font-size: 18px; line-height: 200%;}
.about p{ margin: 15px 0; color: #666}

.block{ height: 50px; clear: both;}

.why{ clear: both;}
.why li{ float: left; width: 48%; margin-bottom: 5rem}
.why li:nth-child(2n+1){ margin-right: 4%;}
.why li h1{ text-align: center; font-size: 1rem;letter-spacing:2px; margin-bottom: 1rem}
.why li .text{font-family: "en_22"; font-size:18px; line-height: 200%; color: #666}

.serverBox{ clear: both; overflow: hidden; margin-top: 80px}
.serverBox .server{ float: left; width: 48%}
.serverBox .server:nth-child(1){ margin-right: 4%;}
.serverBox .server .hd{ padding: 2rem 0; text-align: center; font-size: 1.5rem}
.serverBox .server img{ height: 300px; width: 100%}
.serverBox .server .bd{font-family: "en_22"; font-size: 18px; line-height: 200%;}
.serverBox .server .fd{ text-align: center;}

.serverBox .server .fd a{color: #3d9991; text-decoration: none; font-size: 1.2rem;font-family: "en_22"; }

.intr{font-family: "en_22"; font-size: 1rem; text-align: center;}
.intr p{ padding: 0.5rem 0; color: #666}

.sub{ text-align: center; font-size: 1.8rem; margin-top: 3rem}
.sub_intr{font-family: "en_22"; text-align: center; font-size: 1rem; margin: 1rem 0}

.submitBox li{ float: left; width: 33.333%; padding: 3rem; box-sizing:border-box;}
.submitBox li input{width: 100%;
    padding: 1em;
    background: #fff;
    border: 1px solid rgba(0,0,0,.12);
    font-family: inherit;
    font-size: 15px;
    line-height: normal;
    outline: none;
    -webkit-transition: background .3s ease-out,border .3s ease-out;
    -moz-transition: background .3s ease-out,border .3s ease-out;
    -ms-transition: background .3s ease-out,border .3s ease-out;
    -o-transition: background .3s ease-out,border .3s ease-out;
    transition: background .3s ease-out,border .3s ease-out;
}
.signup{ text-align: center;}
.signup button{
    width: auto;
    padding: 1em 2.25em;
    color: #fff;
    background-color: #4d4d4d;
    border: 1px solid #4d4d4d !important;
    font-family: inherit;
    font-size: 15px;
    line-height: normal;
    font-weight: normal;
    text-align: center;
    text-transform: uppercase;
    white-space: nowrap;
    cursor: pointer;
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.error{color: #f00}
#msg{ text-align: center; display: block; color: #f00; font-size: 1.2rem}
#msg p{color: #00746b;}

#success{ text-align: center; font-family: "en_22"; font-size: 1rem; margin-top: 100px; display: none;}

@media (max-width: 992px){
    .index_title{font-size: 1.2rem}
    .title_under{font-size: 1.2rem;}
    .about p{ margin: 1rem;}
    .block{ height: 0}
    .why{ clear: both;}
    .why li{ clear: both; width: 100%; margin-bottom: 1rem; }
    .why li:nth-child(2n+1){ margin-right: 0}
    .why li .text{font-size: 1rem; line-height: 200%; color: #666; padding: 0 1rem}

    .serverBox .server{ float: left; width: 100%}
    .serverBox .server:nth-child(1){ margin-right: 0;}
    .serverBox .server .hd{ padding: 1rem 0; text-align: center; font-size: 1.2rem}
    .serverBox .server img{ height: auto;}
    .serverBox .server .bd{ padding: 0px 1rem}

    .submitBox li{ float: left; width: 96%; padding: 1rem; margin-left: 2%}
    .submitBox li input{width: 100%; box-sizing:border-box;}
}